An intruder at Andersen Air Force Base in Guam was shot and killed by base security forces on Wednesday night after stabbing a Defense Department civilian security forces while attempting to escape arrest, base officials announced.

The unidentified suspect had led Guam Police Department officers on a high-speed chase on Wednesday when his vehicle crashed into a security barrier at Andersen AFB, a 36th Wing public affairs official said in a Facebook post.

The then suspect fled on foot into a nearby clutch of jungle, prompting the 36th Security Forces Squadron to initiate a base lockdown amid a search of the area.

Upon his discovery, the suspect “responded aggressively and stabbed a Department of Defense civilian security forces member,” according to officials. “The suspect was subsequently shot by the officer in self-defense.”

The suspect was subsequently transported to a civilian hospital, where he was pronounced dead.

“While apprehending a suspect, our defenders were compelled to use lethal force for their own defense, resulting in the death of the suspect,” 36th Wing commander Brig. General Gentry Boswell said in a statement on Thursday morning. “We value the importance of every life and are thankful for the courage our Defenders display in the safe conduct of their duties protecting our personnel and families.”

The Air Force Office of Special Investigation, Naval Criminal Investigative Service, Andersen AFB security forces, and Guam PD are currently investigating the incident.